Clinical Value Of 64 Multi-slice CT In Quantitative Assessment Of Left Ventricular Function

Objective:To assess the value of 64 multi-slice CT in the evaluation of left ventricular function, compared with Echocardiography.Methods:Forty-three patients with coronal artery disease were studied with 64-MSCT coronary angiography and echocardiography. Twenty-nine patients were male, and fourteen female. Twenty series of images were reconstructed at every 5%throughout the cardiac cycle. End-diastolic volume (EDV),end-systolic volume (ESV),stroke volume (SV),ejection fraction (EF) were calculated by using Extended Brilliance TM Workspace V4.0 Comp Cardiac. Echocardiography was Performed using PHILIPS iE33 by ultrasound experts using M-Mode Color Doppler. Statistical analysis was executed by minitab 15 software.Results:1, There was no significant difference among the measurements of auto survey and manual survey on the left ventricular function parameters (P>0.05). A strong correlation between auto survey and manual survey(r=0.975-0.996) was found for all parameters.2, There was no significant difference among the measurements for MSCT and echocardiography of the left ventricular function parameters (P>0.05). A strong correlation between MSCT and echocardiography (r=0.944-0.976) was found for all parameters.Conclusion:1, MSCT angiography of the coronal artery is noninvasive assessment of the coronary tree, whereas the analysis of left ventricular parameters provides additional information of cardiac function without further radiation exposure.2, There was no significant difference among the measurements for auto survey and manual survey of the left ventricular function parameters. A strong correlation between auto survey and manual survey was found for all parameters(r=0.975-0.996).3, Compare with echocardiography, left ventricular function indexes tests by 64-MSCT were accurate, the correlation of the results was quite well (r=0.944-0.976).